1.\" $NetBSD: rpc.lockd.8,v 1.5 2000/06/09 18:51:47 cgd Exp $ 2.\" 3.\" Copyright (c) 1995 A.R.Gordon, andrew.gordon@net-tel.co.uk 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 1. Redistributions of source code must retain the above copyright 10.\" notice, this list of conditions and the following disclaimer. 11.\" 2. Redistributions in binary form must reproduce the above copyright 12.\" notice, this list of conditions and the following disclaimer in the 13.\" documentation and/or other materials provided with the distribution. 14.\" 3. Neither the name of the University nor the names of its contributors 15.\" may be used to endorse or promote products derived from this software 16.\" without specific prior written permission. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28.\" SUCH DAMAGE. 29.\" 30.\" $FreeBSD$ 31.\" 32.Dd November 21, 2019 33.Dt RPC.LOCKD 8 34.Os 35.Sh NAME 36.Nm rpc.lockd 37.Nd NFS file locking daemon 38.Sh SYNOPSIS 39.Nm 40.Op Fl d Ar debug_level 41.Op Fl F 42.Op Fl g Ar grace period 43.Op Fl h Ar bindip 44.Op Fl p Ar port 45.Sh DESCRIPTION 46The 47.Nm 48utility provides monitored and unmonitored file and record locking services 49in an NFS environment. 50To monitor the status of hosts requesting locks, 51the locking daemon typically operates in conjunction 52with 53.Xr rpc.statd 8 . 54.Pp 55Options and operands available for 56.Nm : 57.Bl -tag -width indent 58.It Fl d 59The 60.Fl d 61option causes debugging information to be written to syslog, recording 62all RPC transactions to the daemon. 63These messages are logged with level 64.Dv LOG_DEBUG 65and facility 66.Dv LOG_DAEMON . 67Specifying a 68.Ar debug_level 69of 1 results 70in the generation of one log line per protocol operation. 71Higher 72debug levels can be specified, causing display of operation arguments 73and internal operations of the daemon. 74.It Fl F 75Run 76.Nm 77in the foreground, rather than going into daemon mode. 78This is useful if some other process uses 79.Xr fork 2 80and 81.Xr exec 3 82to run 83.Nm , 84and wants to monitor when and how it exits. 85.It Fl g 86The 87.Fl g 88option allow to specify the 89.Ar grace period , 90in seconds. 91During the grace period 92.Nm 93only accepts requests from hosts which are reinitialising locks which 94existed before the server restart. 95Default is 30 seconds. 96.It Fl h Ar bindip 97Specify specific IP addresses to bind to. 98This option may be specified multiple times. 99If no 100.Fl h 101option is specified, 102.Nm 103will bind to 104.Dv INADDR_ANY . 105Note that when specifying IP addresses with 106.Fl h , 107.Nm 108will automatically add 109.Li 127.0.0.1 110and if IPv6 is enabled, 111.Li ::1 112to the list. 113.It Fl p 114The 115.Fl p 116option allow to force the daemon to bind to the specified 117.Ar port , 118for both AF_INET and AF_INET6 address families. 119.El 120.Pp 121Error conditions are logged to syslog, irrespective of the debug level, 122using log level 123.Dv LOG_ERR 124and facility 125.Dv LOG_DAEMON . 126.Pp 127The 128.Nm 129utility must NOT be invoked by 130.Xr inetd 8 131because the protocol assumes that the daemon will run from system start time. 132Instead, it should be configured in 133.Xr rc.conf 5 134to run at system startup. 135.Sh FILES 136.Bl -tag -width /usr/include/rpcsvc/nlm_prot.x -compact 137.It Pa /usr/include/rpcsvc/nlm_prot.x 138RPC protocol specification for the network lock manager protocol. 139.El 140.Sh SEE ALSO 141.Xr syslog 3 , 142.Xr rc.conf 5 , 143.Xr rpc.statd 8 144.Sh STANDARDS 145The implementation is based on the specification in 146.Rs 147.%B "X/Open CAE Specification C218" 148.%T "Protocols for X/Open PC Interworking: XNFS, Issue 4" 149.%O ISBN 1 872630 66 9 150.Re 151.Sh HISTORY 152A version of 153.Nm 154appeared in 155.Tn SunOS 1564. 157.Sh BUGS 158The current implementation serialises locks requests that could be shared. 159